Network Static Route Issues

Crossposted using Lemmit.

Original post from /r/sysadmin by /u/International_Dare81 on 2023-07-07 12:45:28+00:00.

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Im completely confused.

C:\Windows\system32>tracert 172.16.1.10

Tracing route to copdc1.portlandmaine.local [172.16.1.10]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms copdc1.portlandmaine.local [172.16.1.10]

Trace complete.

C:\Windows\system32>tracert 172.16.1.11

Tracing route to copdc2.portlandmaine.local [172.16.1.11]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.199.1

2 <1 ms <1 ms <1 ms 10.10.10.9

3 1 ms <1 ms <1 ms copdc2.portlandmaine.local [172.16.1.11]

Trace complete.

C:\Windows\system32>route print

Interface List

15...00 50 56 a1 3f 81 ......vmxnet3 Ethernet Adapter

1...........................Software Loopback Interface 1

IPv4 Route Table

Active Routes:

Network Destination Netmask Gateway Interface Metric

0.0.0.00.0.0.0192.168.199.1 192.168.199.20271

127.0.0.0255.0.0.0On-link 127.0.0.1331

127.0.0.1 255.255.255.255On-link 127.0.0.1331

127.255.255.255 255.255.255.255On-link 127.0.0.1331

192.168.199.0255.255.255.0On-link 192.168.199.20271

192.168.199.20 255.255.255.255On-link 192.168.199.20271

192.168.199.255 255.255.255.255On-link 192.168.199.20271

203.0.113.129 255.255.255.255 192.168.199.20 192.168.199.2016

224.0.0.0240.0.0.0On-link 127.0.0.1331

224.0.0.0240.0.0.0On-link 192.168.199.20271

255.255.255.255 255.255.255.255On-link 127.0.0.1331

255.255.255.255 255.255.255.255On-link 192.168.199.20271

Persistent Routes:

Network Address Netmask Gateway Address Metric

0.0.0.00.0.0.0192.168.199.1 Default

IPv6 Route Table

Active Routes:

If Metric Network Destination Gateway

1 331 ::1/128 On-link

1 331 ff00::/8 On-link

Persistent Routes:

None

I cannot understand why 172.16.1.10 is taking some arbitrary route directly to that IP but 172.16.1.11 is taking the proper path based on the routing table. Its like there's a static route somewhere for 1.10 specifically. ALL other IPs route correctly.

Is there somewhere else to look for that static route??? I have put another server in the same subnet and done a traceroute which routes correctly so i think its a server issue not a network issue.